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INTRODUCTION August 7, 1996 - FCC issues new rules Compliance by September 1, 2000 This was a revision of a previous order adopting guidelines and methods for evaluating the environmental effects of RF radiation from FCC regulated transmitters. Use of the new guidelines will ensure that the public and workers receive adequate protection from exposure to potentially harmful RF fields.

INTRODUCTION CON’T Affected providers of the following services: Cellular Paging Public Communication Services Private Land Mobile Radio Services Specialized Mobile Radio Various other services Covered SMR providers include geographic area SMR licensees in the 800 MHz and 900 MHz bands that offer real-time, two-way switched voice service that is interconnected with the public switched network and Incumbent Wide Area SMR licensees.

INTRODUCTION CON’T Following transmitters, facilities and operations are subject to Environmental Evaluation: Non-rooftop antennas with a height of <10 m Rooftop antennas with total power of all channels > 1000 W ERP

DEFINITIONS

EXPOSURE - occurs whenever and wherever a person is subjected to electric, magnetic or electromagnetic fields other than those originating from physiological processes in the body and other natural phenomena.

GENERAL POPULATION/ UNCONTROLLED EXPOSURE - when general public is exposed or in which employees are exposed and they may not be fully aware of their potential for exposure or cannot exercise control over their exposure.

OCCUPATIONAL/CONTROLLED EXPOSURE - where persons are exposed as a consequence of their employment and have been made fully aware of the potential for exposure and can exercise control over their exposure.

HEALTH AFFECTS

BIOLOGICAL EFFECTS OF ELECTROMAGNETIC FIELDS DETERMINED IN ANIMAL STUDIES

Reproduction, growth, and development - thermally induced teratogenesis, embryotoxicity and temporary sterility. TERATOGENESIS: Causing fetal malformations EMBRYOTOXICITY: Harmful to the formation, early growth and development of living organisms

Immune and blood related - Stimulation of T & B lymphocytes, immunosuppression, enhanced, naturally occurring tumors. Limited in vitro data suggest that microwaves might be a tumor promoter in laboratory animals, but the data are not conclusive. Epidemiological studies have provided no conclusive evidence that RF energies are carcinogenic to human beings.

Nervous - Behavior changes, changes in Ca+2 flux, effects with neuro-active drugs and chemicals. The threshold for behavioral responses is associated with a significant increase in body temperature caused by absorbed RF energy. Reports of human overexposure in the medical literature are sparse but do contain references to psychological effects. The signs and symptoms include: headache, nervousness, fatigue, irritability, insomnia, loss of appetite, dizziness, emotional instability, depression , memory loss, thyroid enlargement, sweating, tremor of extended fingers, loss of sexual drive and impotence.

Cardiovascular - Thermally induced increases in heart rate.

Neuroendocrine - Increased/ decreased hormone levels.

Ocular - Cataract formation, death of corneal endothelial cells, changes in retinal plexiform layers.

FACTORS THAT INCREASE THE RISK OF DAMAGE FROM RF EXPOSURE Thermally stressful environments Use of alcohol Some medication Individual’s thermal sensitive Unknowns

Hazard Communication is the primary control for RF radiation exposure This is way we have two levels of training established. Awareness level for those that will only be entering a blue zone and Technician level for those entering yellow and orange zones. The higher the potential the greater the knowledge level must be of the possible danger present when working in these areas.

WAYS TO CONTROL RF RADIATION EXPOSURE Identify where the hazard areas are located Post warning signage at site with potential exposures. Written guidelines Employee training

SURVEYS ARE CURRENTLY BEING CONDUCTED AND APPROPRIATE SIGNAGE IS BEING POSTED

EME ZONING BLUE ZONE - areas < 20% of MPE YELLOW ZONE - areas between 20 % and 100% of MPE ORANGE ZONE - above 100% of MPE BLUE ZONE - Any area where the time and spatial-average is below 20% of the Occupational/Controlled MPE. There is no time limit and no special EME safety practices are required for these areas.. YELLOW ZONE - Any area where the spatial-average is between 20% - 100% Occupational/Controlled MPE. While the fields in this area are within acceptable limits, caution must be exercised because nearby locations may exceed the limits. ORANGE ZONE - Any area where the spatial-averaged levels fall above 100% of Occupational/Controlled MPE. When locations are fount to require orange zoning, special procedures, engineering or restricted access must be implemented to ensure compliance.

Signs are used to distinguish the boundary between the General Population/Uncontrolled and the Occupational/Controlled areas.

Signs identify RF controlled areas where RF exposure can exceed the Occupational/Controlled MPE.

Signs denote the boundary of areas with RF levels substantially above the FCC limits.

IN SUMMARY YOU SHOULD ONLY ENTER BLUE ZONES TO ENTER YELLOW AND ORANGE ZONES YOU MUST HAVE ADDITIONAL TRAINING

THANK YOU FOR YOUR ATTENTION AND PARTICIPATION

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